The 1:5 High Speed Contra Angle Dental Handpiece allows your implant and surgical motor to be used for traditional dental applications while providing more torque than a traditional air-driven dental handpiece. It performs restorations, caries removal, and sectioning as well as traditional applications. The contra angle is lowspeed, max rated at 120,000 rpm(2000 per second), and its Anti-resorption system structure, even more health. Fit 1.6mm Burs.